摘要
大庆长垣西部新站油田属于特低渗透裂缝型油藏。油田注水开发主要矛盾是油井见水早、含水上升快、产量递减快，并且见水井没有明显的方向性，注采系统调整难度大，油田稳产难度大。为此，通过井壁崩落、微地震、波速各向异性等方法，对新站油田地应力进行研究，搞清了新站油田现今最大水平主应力方向主要为NE71．4°～100°，近东西向，从而明确了新站油田裂缝发育方位。应用地应力研究结果，新站油田宜采用矩形五点法或菱形反九点法注采井网注水开发，近东西向和南北向的油井要慎重压裂。
Xinzhan oilfield in the west of Daqing placanticline is one ultra low the main conflicts for water flood development are： early water breakthrough in fast decrease of oil production, without obvious direction in water breakthrough permeability oil reservoir. In this field, producers, quick increase of water cut, wells, great difficulty in injection -production system adjustment and great difficulty in production stabilization. Therefore, based on many methods, such as borehole wall breakage, micro seismic and wave velocity anisotropy, the Earth stress in Xinzhan oilfield is studied to make clear the orientation of the maximum horizontal main stress. Then will be determined to guide the well pattern arrangement and hydraulic the fractures development orientation in this field fracturing.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2008年第1期93-96,共4页
Petroleum Geology & Oilfield Development in Daqing
关键词
裂缝
地应力
最大水平主应力
井网部署
水力压裂
fractures
Earth stress
the maximum horizontal main stress
well pattern arrangement
hydraulic fracturing
